An attic space with wooden rafters, loose fiberglass insulation on the floor, and a metal air handler connected to flexible silver HVAC ducts.

Duct Cleaning in Whitewater, WI

Tell us about your home, and a licensed contractor who covers Walworth County will get in touch.

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Step 1 of 3: Equipment
An insulated HVAC air handler unit connected to a reflective foil-wrapped flexible duct inside a residential attic.

Eight months of heating pushes a lot of air through your ducts

Your furnace runs October through May here. On winter nights that average 16°F, it cycles on and off for hours at a time, and every bit of that heat travels through your ductwork before it reaches a room. Dust and debris sitting in the ducts get stirred up and pushed into the house each time the blower starts.

Walworth County has seen 18 winter storms and 74 damaging wind events over the past ten years, the kind of weather that knocks out power. When that happens, a furnace sits idle in a cold house, then fires back up once power returns. That restart pushes another round of settled dust through the system right as the furnace is working hardest to warm the house back up.

8 months
October through May, your furnace pushes air through your ducts
3 months
June through August, your air conditioner does the same
Isometric cutaway illustration of a house interior showing ductwork, vents, an air handler unit, and furnished rooms with a bed, sofas, and a bathroom under a shingled gable roof.
Your ducts carry heat October through May and cooled air June through August.

NOAA nClimDiv, 1991–2020 normals

How often should air ducts be cleaned?
There's no fixed schedule that fits every house, so watch for the signs instead. If dust settles back on furniture soon after you clean, or you can see dust blowing out of the vents when the furnace starts up, it's time. Homes with pets or anyone with allergies usually need it checked more often. A contractor can look at your ducts and tell you where you stand.
Is air duct cleaning worth it?
It's worth it if your ducts are visibly dirty, if pests or water have gotten into them, or if dust keeps settling back on surfaces soon after you clean the house. It won't lower your heating bills or fix an airflow problem on its own. A contractor can look at your ducts and tell you whether cleaning will actually help your situation.
What does air duct cleaning involve?
A contractor connects a vacuum system to your ductwork, then uses brushes or air tools to knock loose dust and debris while the vacuum pulls it out. Each supply and return vent gets opened and cleaned, and the furnace or air handler often gets a going-over too, including the blower. Once that's done, the vents go back on and the system gets checked to make sure air is moving through it the way it should.